70667447 has 8 divisors (see below), whose sum is σ = 74266896. Its totient is φ = 67156992.

The previous prime is 70667437. The next prime is 70667449. The reversal of 70667447 is 74476607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70667447 - 2²⁴ = 53890231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70667449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20618 + ... + 23799.

It is an arithmetic number, because the mean of its divisors is an integer number (9283362).

Almost surely, 2^70667447 is an apocalyptic number.

70667447 is a deficient number, since it is larger than the sum of its proper divisors (3599449).

70667447 is a wasteful number, since it uses less digits than its factorization.

70667447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44497.

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 70667447 is about 8406.3932218283. The cubic root of 70667447 is about 413.4342646482.

The spelling of 70667447 in words is "seventy million, six hundred sixty-seven thousand, four hundred forty-seven".